/Engine/Source/Runtime/SlateCore/Public/Rendering/SlateDrawBuffer.h
Gets all window element lists in this buffer.
const [TArray](API\Runtime\Core\Containers\TArray)< [TSharedRef](API\Runtime\Core\Templates\TSharedRef)< [FSlateWindowElementList](API\Runtime\SlateCore\Rendering\FSlateWindowElementList) > > & GetWindowElementLists()